Uhm, is that safe to do with a dog that goes down the stairs normally so fast that it falls (he falls going up sometimes too...)? Did I mention that this is Hades? The dog that runs into things, whacks his head off of door jams and trees, trips and falls poolside, and one time, it was classic, he was carrying a long, thick branch and tried to run between two trees and that weren't wide enough apart and he pulled the cartoon dog squish-into-itself-like-an-accordion-stop?!?!